Patents Assigned to Mitsubishi Paper Mills Limited
  • Publication number: 20200070103
    Abstract: A semipermeable membrane support containing polyolefin-based fibers, which can withstand repeated washing and backwashing, makes it easy for a semipermeable membrane component to permeate thereinto and difficult for the component to strike therethrough, and is excellent in adhesion to the semipermeable membrane and adhesion between a non-coating surface thereof and a resin frame. The semipermeable membrane support which is used by forming the semipermeable membrane thereon is a wet-laid nonwoven fabric containing core-sheath type conjugate fibers composed of polypropylene as a core component and polyethylene as a sheath component and has a burst strength of 300 to 1,000 kPa, or the Bekk smoothness and 75° mirror surface glossiness of the coating surface on which the semipermeable membrane is to be formed of the semipermeable membrane support being more than the Bekk smoothness and 75° mirror surface glossiness of a non-coating surface on the opposite side.
    Type: Application
    Filed: March 23, 2018
    Publication date: March 5, 2020
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Keisuke OYAMA, Yusuke SHIMIZU, Takahito OCHIAI, Takao MASUDA
  • Publication number: 20200039275
    Abstract: A transfer paper used for a transfer printing method using sublimation textile ink, comprising a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least a pigment, a binder, a polyacrylic acid salt and an acetylene glycol derivative, has image deterioration resistance, good color development property and excellent adhesion property.
    Type: Application
    Filed: July 3, 2017
    Publication date: February 6, 2020
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Koji IGARASHI, Jun URASAKI
  • Publication number: 20200012190
    Abstract: A photosensitive resin composition which comprises (A) an alkali-soluble resin, (B) a photopolymerization initiator and (C) an acrylate monomer and may further comprise (D) a methacrylate monomer, wherein the acrylate monomer (C) comprises (C1) an acrylate monomer having a double bond equivalent of not less than 250 and (C2) azo acrylate monomer having a double bond equivalent of not more than 150, the content of the methacrylate monomer (D) is 0 to 5 mass %, the content of the acrylate monomer having a double bond equivalent of not less than 250 (C1) is 40 to 60 mass %, and the content of the acrylate monomer having a double bond equivalent of not more than 150 (C2) is 40 to 60 mass % based on the acrylate monomer (C), and the content of the photopolymerization initiator (B) is 0.5 to 1.5 mass % based on the photosensitive resin composition, and an etching method and plating method using the above photosensitive resin composition.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 9, 2020
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Munetoshi IRISAWA, Kunihito KAJIYA, Yuji TOYODA
  • Patent number: 10492487
    Abstract: The present invention relates to a jig for vitrification cryopreservation of cell or tissue, having a metallic support, and a vitrification solution absorber including an adhesion layer and a vitrification solution-absorbing layer on the metallic support in the order from the side closer to the metallic support.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: December 3, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Atsushi Matsuzawa, Katsumitsu Susaki
  • Patent number: 10444919
    Abstract: An optically transparent conductive material including an optically transparent support, sensor parts electrically connected to a terminal area via peripheral wiring parts, and dummy parts not electrically connected to the terminal areas, the sensor parts and the dummy parts being disposed on the optically transparent support, wherein the sensor parts and the dummy parts each have a metal thin wire net-like pattern formed by an assembly of multiple polygons, the metal thin wire pattern of each dummy part includes disconnection parts, and the metal thin wire pattern of each dummy part also includes a region satisfying the following requirement (1) and/or a region satisfying the following requirement (2): (1) each polygon sharing one or more vertices with a polygon having no disconnection part includes at least one disconnection part; and (2) each polygon sharing one or more vertices with at least one of two polygons sharing a side or a vertex and having no disconnection part includes at least one disconnection
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: October 15, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Takenobu Yoshiki
  • Patent number: 10412958
    Abstract: Provided is a device for vitrification-based cryopreservation which enables easy and reliable vitrification freezing of cells or tissues. The device of the present invention for cell or tissue cryopreservation by vitrification has a porous structure made of a material having a refractive index of 1.45 or less as a vitrification solution absorber.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: September 17, 2019
    Assignees: SCHOOL JURIDICAL PERSON KITASATO INSTITUTE, MITSUBISHI PAPER MILLS LIMITED
    Inventors: Kenji Momozawa, Atsushi Matsuzawa, Katsumitsu Susaki
  • Publication number: 20190252661
    Abstract: An object of the invention is to provide a separator for an electrochemical element in which the occurrence of fluff on the sheet surface thereof is suppressed and an internal short-circuit defect rate is low, and the invention provides a separator for an electrochemical element, comprising: a fibrillated solvent spun cellulose fiber; and a synthetic fiber, wherein the separator for an electrochemical element contains, as the synthetic fiber, from 5 to 40% by weight of a core-sheath type composite fiber having a fiber diameter of 6.0 ?m or less which is composed of: a core component made of a resin having a melting point of 160° C. or more; and a sheath component made of polyethylene.
    Type: Application
    Filed: October 17, 2017
    Publication date: August 15, 2019
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Keisuke OOYAMA, Takao MASUDA
  • Patent number: 10379691
    Abstract: Provided is an optically transparent conductive material which does not cause moire even when placed over a liquid crystal display, and has a favorable optical transparency and a high reliability. The optically transparent conductive material has, on an optically transparent support, an optically transparent conductive layer having a sensor part electrically connected to a terminal part and a dummy part not electrically connected to the terminal part, and the sensor part and/or the dummy part is formed of a metal pattern having a mesh shape obtained by enlarging or reducing a Voronoi diagram in an arbitrary direction.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 13, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Kazuhiko Sunada, Takenobu Yoshiki
  • Patent number: 10359895
    Abstract: An optically transparent conductive material includes two layers including an upper conductive layer and a lower conductive layer in a stack with an insulation layer therebetween. The upper conductive layer and the lower conductive layer each include at least sensor parts to be electrically connected to terminal areas and dummy parts not to be electrically connected to the terminal areas, the sensor parts and the dummy parts each being formed in a net-like irregular pattern of metal thin wires. The sensor parts of the lower conductive layer are formed with multiple linear electrodes that extend in a first direction and that are repetitively aligned with a period L in a second direction, and the sensor parts of the upper conductive layer are formed with multiple linear electrodes that extend in a third direction and that are repetitively aligned with a period M in a fourth direction.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 23, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Kazuhiko Sunada
  • Publication number: 20190217647
    Abstract: The present invention relates to a transfer paper, which is: (i) a transfer paper without a coating layer, which comprises a pulp, a filler and an urea phosphate esterified starch, or (ii) a transfer paper having a coating layer, which comprises a base paper and one or more coating layer(s) provided on at least one side of the base paper, wherein an outermost coating layer positioned on the outermost side with respect to the base paper contains at least kaolin, calcium carbonate and a binder, wherein, (?) the base paper contains an urea phosphate esterified starch, or (?) the outermost coating layer contains an urea phosphate esterified starch. According to the present invention, it is possible to provide a transfer paper excellent in image deterioration resistance, color development property, adhesion property and strike-through suppression property.
    Type: Application
    Filed: June 6, 2017
    Publication date: July 18, 2019
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Masanori NAGOSHI, Atsushi NAKAMURA, Jun URASAKI, Hideki TAKADA
  • Publication number: 20190148697
    Abstract: A separator for electrochemical elements includes beaten solvent-spun cellulose fibers and rayon fibers having a fiber diameter of 9.5 ?m or less. More preferably, the separator for electrochemical elements has a content of the rayon fibers relative to all fibers of 10 to 25% by mass, and can be applied to electrochemical elements such as electric double layer capacitors, hybrid capacitors, redox capacitors, and lithium secondary batteries. The separator can provide low internal short circuit failure rates and high surface strength.
    Type: Application
    Filed: May 1, 2017
    Publication date: May 16, 2019
    Applicant: Mitsubishi Paper Mills Limited
    Inventors: Toshihiro SHIGEMATSU, Masatoshi KITO, Keisuke OOYAMA
  • Patent number: 10275100
    Abstract: Provided is an optically transparent conductive material which does not cause moire or grain even when placed over a liquid crystal display, that is, has a favorably low visibility (moire and grain are less recognizable), and has a high reliability. The optically transparent conductive material has, on an optically transparent base material, an optically transparent conductive layer having sensor parts and dummy parts, the sensor parts and/or the dummy parts being formed of a metal mesh pattern consisting of Voronoi edges formed based on a plurality of generators arranged in a plane tiled using polygons longer in the first direction than in the second direction, the mesh pattern being characterized in that each polygon has only one generator arranged in the polygon and that the generator is at an arbitrary position within a reduced polygon formed by connecting points at 90% or less of the direct distance from the center of gravity of the polygon to each vertex of the polygon.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 30, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Kazuhiko Sunada, Yasuhiro Tanaka
  • Patent number: 10246822
    Abstract: Provided is a textile printing paper for use in a paper printing method, the textile printing paper enabling the transfer of a high-resolution image to a printing substrate while being excellent in releasability. The textile printing paper comprises a base paper and a glue layer on a surface of the base paper, the base paper having a swelling rate of 130% by mass to 180% by mass.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: April 2, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Shinichiro Matsumoto
  • Patent number: 10230087
    Abstract: A non-woven fabric base material for a lithium ion secondary battery separator composed mainly of a polyethylene terephthalate fiber, characterized in that the non-woven fabric base material comprises a polyethylene terephthalate binder fiber and a crystallized polyethylene terephthalate fiber, and the content of a polyethylene terephthalate binder fiber having a fiber length of 2.5 mm or less is 10 to 60 mass %.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: March 12, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Tomohiro Sato, Toshihiro Shigematsu, Makoto Kato, Kenji Hyodo, Wakana Aizawa
  • Patent number: 10221526
    Abstract: Provided is a textile printing paper for use in a paper printing method, the textile printing paper being excellent in releasability from a printing substrate and resistance to fogging of the print while satisfying the requirements for adhesiveness of a printed paper to a printing substrate. The textile printing paper comprises a base paper and a glue layer on a surface of the base paper, the base paper having a wax pick resistance of No. 8A or higher.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: March 5, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Shinichiro Matsumoto
  • Patent number: 10222917
    Abstract: A pattern formation method produces a random metal pattern that does not cause moire even when placed over a liquid crystal display and achieves improved detection sensitivity due to compressed variation in electrical properties among sensors. The method forms a patterned optically transparent and electrically conductive assembly having an optically transparent and electrically conductive layer on an optically transparent support. The conductive layer has sensor parts electrically connected to terminal parts and dummy parts not electrically connected to terminal parts, with the sensor and dummy parts having a metal mesh pattern.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: March 5, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Kazuhiko Sunada, Takenobu Yoshiki
  • Patent number: 10214853
    Abstract: Provided is a textile printing paper for use in a paper printing method, the textile printing paper being excellent in color development on a printing substrate, transferred unevenness suppressing property and strike-through resistance while satisfying the requirements for adhesiveness of a printed paper to a printing substrate. The textile printing paper comprises a base paper and a glue layer on a surface of the base paper, the base paper having a sizing degree of 10 g/m2 to 40 g/m2 as measured according to JIS P 8140:1998.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: February 26, 2019
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Shinichiro Matsumoto
  • Publication number: 20180341349
    Abstract: An optically transparent conductive material includes two layers including an upper conductive layer and a lower conductive layer in a stack with an insulation layer therebetween. The upper conductive layer and the lower conductive layer each include at least sensor parts to be electrically connected to terminal areas and dummy parts not to be electrically connected to the terminal areas, the sensor parts and the dummy parts each being foil led in a net-like irregular pattern of metal thin wires. The sensor parts of the lower conductive layer are formed with multiple linear electrodes that extend in a first direction and that are repetitively aligned with a period L in a second direction, and the sensor parts of the upper conductive layer are formed with multiple linear electrodes that extend in a third direction and that are repetitively aligned with a period M in a fourth direction.
    Type: Application
    Filed: November 9, 2016
    Publication date: November 29, 2018
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Kazuhiko Sunada
  • Patent number: 10039278
    Abstract: The present invention aims to provide a device for vitrification cryopreservation enabling easy and reliable vitrification cryopreservation of a cell or tissue. The device for vitrification cryopreservation of a cell or tissue of the present invention includes a support and a vitrification solution absorber including at least an adhesive layer and a vitrification solution absorbing layer in the given order on the support. The device includes a portion with no adhesive layer disposed between the support and a portion of the vitrification solution absorbing layer configured to hold a cell or tissue.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: August 7, 2018
    Assignee: MITSUBISHI PAPER MILLS LIMITED
    Inventors: Atsushi Matsuzawa, Katsumitsu Susaki
  • Publication number: 20180196546
    Abstract: An optically transparent conductive material including an optically transparent support, sensor parts electrically connected to a terminal area via peripheral wiring parts, and dummy parts not electrically connected to the terminal areas, the sensor parts and the dummy parts being disposed on the optically transparent support, wherein the sensor parts and the dummy parts each have a metal thin wire net-like pattern formed by an assembly of multiple polygons, the metal thin wire pattern of each dummy part includes disconnection parts, and the metal thin wire pattern of each dummy part also includes a region satisfying the following requirement (1) and/or a region satisfying the following requirement (2): (1) each polygon sharing one or more vertices with a polygon having no disconnection part includes at least one disconnection part; and (2) each polygon sharing one or more vertices with at least one of two polygons sharing a side or a vertex and having no disconnection part includes at least one disconnection
    Type: Application
    Filed: June 14, 2016
    Publication date: July 12, 2018
    Applicant: MITSUBISHI PAPER MILLS LIMITED
    Inventor: Takenobu YOSHIKI